EOF - Empirical Orthogonal Functions

Description

The eof Baustein computes the emperical orthogonal functions of a data set.

Command Line Syntax

eof [--components=<n>] [-h|--help] [-l|--lat-cor] [-n|--normalize] [-O|--overwrite]
 [--percentage=<n>] [-V|--verify] [-v|--version] <input-file>:<var> <output-file>
 
<input-file>:<var> The name of the NetCDF input file and the name of the variable in this file.
<output-file> The name of the output file.

 
Long Option Short Option Description
--components=<n> Compute the first n principal components. If this option is omitted the first 10 principal components are computed.
--help -h Print a brief description of the tool and its options.
--lat-cor -l Correct the data and the principal components for the latitude.
--normalize -n Normalize the principal components.
--overwrite -O Overwrite the output file if it exists.
--percentage=<n> Ignore data points which have valid data during less than n % of the time. If this option is not specified data points which have valid data during less than 10% of the time are ignored.
--verify -V Verify the computations.
--version -v Show the version information of this tool.

Examples

You can use the following command to compute the first five EOFs of a variable "pressure" in  the NetCDF file "ssd.nc" with normalization and write the result to the file pressure-eofs.nc 
eof --components=5 -n ssd.nc:pressure pressure-eofs.nc